Shape Stability of Polyethylene GlycolAcetylene Black Phase Change Composites for Latent Heat Storage
Joint Authors
Zhang, Jingjing
Li, Hairong
Tu, Junyang
Shi, Ruonan
Xiong, Chuanxi
Jiang, Ming
Luo, Zhiping
Source
Advances in Materials Science and Engineering
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-10-24
Country of Publication
Egypt
No. of Pages
9
Abstract EN
Sufficient shape stability is essential for a high-performance phase change material (PCM).
Although significant advances have been made to develop form-stable composites, technical development in the field of polymer-based PCMs is currently limited by an incomplete understanding of the shape stability.
Form-stable polyethylene glycol/acetylene black (PEG/AB) PCMs containing PEGs with different average molecular weights have been obtained by melt mixing to investigate the shape stability of the PEG/AB composites.
It was found that the phase change behaviors of the PEG/AB composites were not only attributed to the interactions between the AB and PEG, but also to the intermolecular interactions of the PEG chains, depending on the varying molecular weights of the PEGs.
Physically crosslinked structure with temporary junctions was formed through hydrogen bonding, capillary, surface tension forces, intermolecular friction, and macromolecular entanglement, which contributed to the constrained chain motion and thus the solid-solid phase change behavior of the PEG/AB composites.
The physically crosslinked structure was more stable with longer length of the PEG molecular chains, resulting in higher critical impregnated contents of the PEG into the AB and thus improved latent heat.
American Psychological Association (APA)
Zhang, Jingjing& Li, Hairong& Tu, Junyang& Shi, Ruonan& Luo, Zhiping& Xiong, Chuanxi…[et al.]. 2018. Shape Stability of Polyethylene GlycolAcetylene Black Phase Change Composites for Latent Heat Storage. Advances in Materials Science and Engineering،Vol. 2018, no. 2018, pp.1-9.
https://search.emarefa.net/detail/BIM-1120576
Modern Language Association (MLA)
Zhang, Jingjing…[et al.]. Shape Stability of Polyethylene GlycolAcetylene Black Phase Change Composites for Latent Heat Storage. Advances in Materials Science and Engineering No. 2018 (2018), pp.1-9.
https://search.emarefa.net/detail/BIM-1120576
American Medical Association (AMA)
Zhang, Jingjing& Li, Hairong& Tu, Junyang& Shi, Ruonan& Luo, Zhiping& Xiong, Chuanxi…[et al.]. Shape Stability of Polyethylene GlycolAcetylene Black Phase Change Composites for Latent Heat Storage. Advances in Materials Science and Engineering. 2018. Vol. 2018, no. 2018, pp.1-9.
https://search.emarefa.net/detail/BIM-1120576
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1120576